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Finding the Fourth Proportional to 3,668.57, 5,502.80 and 1,477.25

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Solution

The fourth proportional to 3,668.57, 5,502.80 and 1,477.25 is: 2,215.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,668.57 : 5,502.80 = 1,477.25 : x
  2. Step 2: Convert to fraction form
    3,668.57/5,502.80 = 1,477.25/x
  3. Step 3: Cross multiply
    3,668.57x = 5,502.80 × 1,477.25
  4. Step 4: Simplify right side
    3,668.57x = 8,129,011.30
  5. Step 5: Solve for x
    x = 8,129,011.30/3,668.57
  6. Step 6: Final answer
    x = 2,215.85

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.